Jeff Sagarin’s
rating system is based on a mathematical formula that uses a player’s won-lost-tied
record against other players when they play on the same course on the same day,
and the stroke differential between those players, then links all players to one
another based on common opponents. The ratings give an indication of who is playing
well over the past 52 weeks.

The following list is an explanation of each
category Sagarin uses to formulate his rankings.

POWER RATING:
This is NOT a stroke average. The rating is calculated using a player?s record, stroke differential and connection to all the other players in the database. The difference between two ratings predicts the difference between two players in a typical round.

SCHEDULE STRENGTH: The average strength of each event in which
the player has played, calculated using the power ratings of every player in every
field.

SCHEDULE RANK: The player’s schedule is ranked by difficulty
among the entire database.

RECORDS: A player’s won-lost-tied
record, based on head-to-head competition, in each category. The winner in a 156-player
field has a record of 155-0-0, the runner-up is 154-1-0, etc.